Class 10 Book Solution from K C Nag in Variation Question No: 7.4(3)(ii)

যদি x, y, z চলরাশি হয়, কিন্তু (y + z - x) ধ্রুবক হয় এবং যদি \((x+y-z)(x+z-y)\ \propto\ yz\), তবে প্রমান করো যে, \(x+y+z\ \propto\ yz\)

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